The Reef Octopus Regal 250-INT is an advanced in-sump protein skimmer meticulously engineered to deliver superior organic waste removal for demanding saltwater aquariums. Designed for optimal performance, this high-efficiency unit effectively extracts dissolved organics and particulate matter, ensuring pristine water quality and a thriving environment for all marine life. At its heart, the Regal 250-INT is powered by a safe and efficient 36V VarioS-6S controllable pinwheel pump, offering five distinct energy-saving power settings. The sophisticated controller boasts multiple pause times for feeding, an essential safety float switch, and a 0-10v input for seamless integration with external aquarium controllers. Crafted from durable solid cast acrylic, it features a 16.5 inch by 11 inch footprint, a 10 inch reaction chamber, and stands 24 inches tall. This state-of-the-art protein skimmer is an excellent choice for dedicated reef keepers with medium to heavy bioloads in aquariums up to 600 gallons. Its precise control, integrated memory, and robust construction provide unparalleled reliability and customization, making it perfect for those seeking an advanced, high-performance filtration solution to maintain the healthiest possible marine ecosystem.